According to the projection based on existing measures, total greenhouse gas (GHG) emissions will remain at a level similar to today's until 2030 and will then begin to decline. Under the projection that includes additional measures, however, emissions will decrease dramatically – by 35% by 2030 and by 88% by 2050. The projections indicate that, with the intensive implementation of measures, it is possible to achieve the targets set for reducing total GHG emissions, as well as emissions from sources not covered by the Emissions Trading System (ETS).

Specific CO₂ emissions from new passenger cars amounted to 127 g CO₂/km in 2024 and decreased to 117 g CO₂/km in 2025. The increase in the share of electric passenger cars contributed significantly to this reduction. Nevertheless, the target value for the 2025–2029 period, set at 93.6 g CO₂/km, has not yet been achieved.

In 2024, average CO₂ emissions from all passenger cars amounted to 157.5 g CO₂/km and changed only marginally compared with 2023. The target value for 2020, set at 152 g CO₂/km, therefore remained unmet.

Slovenia has a relatively high level of energy intensity, although it has been declining, particularly rapidly in recent years. Between 2005 and 2023, energy intensity decreased at an average annual rate of 3.2%. In 2024, energy intensity increased for the first time since 2016, rising by 2.1%. In 2024, Slovenia’s energy intensity was 37% higher than the EU-27 average, which is 15 percentage points less than in 2005.

Final energy consumption in 2024 amounted to 4,594 ktoe and increased by 2.4% compared to the previous year. A decrease occurred only in households, by 1.6%; in all other sectors, final energy consumption increased: by less than one per cent in industry, by 2.8% in services, and the most, by 5.3%, in transport. Final energy consumption was 177 ktoe (- 3.7%) , or 3.7%, lower than the 2024 indicative target value from the National Energy and Climate Plan from 2020 (NECP 2024). The indicative annual target was thus achieved.

In 2024, taking into account only the production of energy from RES in Slovenia, Slovenia achieved a 24.6% share of RES in gross final energy consumption. To achieve a binding 25% national target share of RES under the Directive 2009/28/EC, Slovenia purchased the missing production from RES. The share in heating and cooling as well as the share in transport sector, are still significantly lagging behind the planned development.